Restart the launcher. It should automatically re-download the missing core files. 3. Use the Gaming Services Repair Tool
How to Fix "Minecraft Launcher Error: Couldn't Load Launcher Core" Minecraft Launcher Error: Couldn't load launche...
: Press Windows Key + I and go to Apps > Installed Apps . Restart the launcher
: If Repair fails, try the Reset button below it. Note: You may need to log in again . 2. Manual launcher.dll Refresh Minecraft Launcher Error: Couldn't load launche...
"Couldn't Load Launcher Core" bug and I can't seem to fix it
Navigate to your Minecraft installation folder (usually C:\Program Files (x86)\Minecraft Launcher\game ). Find the file named and delete it.
The quickest fix for the modern Windows launcher is using the built-in Windows repair tool.